The collapsible flask packs small to fit into tight spaces such as running shorts, cycling jerseys, paddling or fishing vest.  

The output is up to 2L/min. with a total capacity of 1000L, depending on the water quality. 

Easily clean the EZ-Clean MembraneTM by simply shaking or swishing the filter in the water - in the field or at home. No backflushing or tools necessary. 100% PVC and BPA free. 

Gives you the freedom to drink anytime, anywhere.

Compact and ultralight hollow fiber filter that only weighs 59 g.

The collapsible flask packs small to fit into tight spaces such as running shorts, cycling jerseys, paddling or fishing vests.

The Katadyn BeFreeTM 0.1L removes bacteria, cysts and sediment with its pore size of 0.1 micron (0.0001 mm).

Easily clean the EZ-Clean MembraneTM by simply shaking or swishing. No backflushing or tools necessary